Home / 3,269.64-4,905.18-1,078.28

Finding the Fourth Proportional to 3,269.64, 4,905.18 and 1,078.28

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Solution

The fourth proportional to 3,269.64, 4,905.18 and 1,078.28 is: 1,617.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.64 : 4,905.18 = 1,078.28 : x
  2. Step 2: Convert to fraction form
    3,269.64/4,905.18 = 1,078.28/x
  3. Step 3: Cross multiply
    3,269.64x = 4,905.18 × 1,078.28
  4. Step 4: Simplify right side
    3,269.64x = 5,289,157.49
  5. Step 5: Solve for x
    x = 5,289,157.49/3,269.64
  6. Step 6: Final answer
    x = 1,617.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.